Home / 28,625.34-39,503.01-15,878.10

Finding the Fourth Proportional to 28,625.34, 39,503.01 and 15,878.10

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Solution

The fourth proportional to 28,625.34, 39,503.01 and 15,878.10 is: 21,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625.34 : 39,503.01 = 15,878.10 : x
  2. Step 2: Convert to fraction form
    28,625.34/39,503.01 = 15,878.10/x
  3. Step 3: Cross multiply
    28,625.34x = 39,503.01 × 15,878.10
  4. Step 4: Simplify right side
    28,625.34x = 627,232,743.08
  5. Step 5: Solve for x
    x = 627,232,743.08/28,625.34
  6. Step 6: Final answer
    x = 21,911.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.